Pickup device driving apparatus, photographing device using the same, and monitoring camera apparatus

Abstract

A pickup device driving apparatus includes a base of which the position is fixed with respect to a lens part, a movable part, a pickup device which is attached to the movable part in a state that a pickup surface is perpendicular to an optical axial direction, a first support part and a second support part which support the movable part, a first rotating part, a second rotating part, a third rotating part, and a fourth rotating part, and a driving part for driving the pickup device such that the position of the pickup device is changed relative to the lens part in a state that rotating center axes form vertexes of a parallelogram.

Description

TECHNICAL FIELD [0001] The present invention relates to a photographing apparatus such as a monitoring camera apparatus or a video camera apparatus, and more particularly, to a pickup device driving apparatus for moving a pickup device in an optical axial direction, a photographing apparatus using the same, and a monitoring camera apparatus. BACKGROUND ART [0002] First, a conventional photographing apparatus will be described. As an example of a photographing apparatus, a monitoring camera apparatus will be described. [0003] Recently, a technology related to various monitoring camera apparatuses has been suggested. In particular, in a monitoring camera apparatus for performing a monitoring operation day and night, a technology of disposing an infrared-light cut filter for selectively transmitting visible light and absorbing infrared light on the front surface of a pickup device and performing photographing by day and removing the infrared-light cut filter disposed on the front surfa...

AI Technical Summary

Benefits of technology

The present invention provides a pickup device with high driving precision even upon slight movement. The pickup device includes a movable part, a base, and a driving part that changes the position of the pickup device relative to the lens part. The movable part is held by multiple rotating parts that form a parallelogram with the optical axial direction. The position of the pickup device is changed by the driving part, which reduces hysteresis and impact resistance. The invention also provides a photographing apparatus with the pickup device and a monitoring camera apparatus with the pickup device.

Problems solved by technology

In particular, even when the pickup device is slightly moved, linearity of the movement distance of the pickup device due to rotation of the lead screw deteriorates and thus driving precision is reduced.

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